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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Hello Todd,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">I’ve landed<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><a href="https://github.com/llvm/llvm-project/commit/64ab2b6825c5aeae6e4afa7ef0829b89a6828102">https://github.com/llvm/llvm-project/commit/64ab2b6825c5aeae6e4afa7ef0829b89a6828102</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">which should fix the problem you’re seeing. If it doesn’t, please let me know.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Alex.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>De :</b> llvm-dev <llvm-dev-bounces@lists.llvm.org> <b>De la part de</b> Snider, Todd via llvm-dev<br>
<b>Envoyé :</b> March 18, 2021 7:12 PM<br>
<b>À :</b> llvm-dev@lists.llvm.org<br>
<b>Objet :</b> [llvm-dev] TempFile::keep() issue on WIndows<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">Hi All,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I’ve run into an issue trying to run an llvm-ar executable built on Windows 10 on a Windows 7 machine.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I get a permission denied error when the archiver tries to write the new archive file:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">%> llvm-ar rv mylib.lib foo.o<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">llvm-ar.exe: warning: creating mylib.lib<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">llvm-ar.exe: error: mylib.lib: permission denied<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I’ve tracked the issue down to a call to ::GetFinalPathByHandle() from realPathFromHandle() (defined in llvm/lib/Support/Windows/Path.inc).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">realPathFromHandle() will set an error code when ::GetFinalPathByHandle() returns a value of 0 (as it does in the above case).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Is there a known incompatibility/limitation/bug with trying to run the Windows 10 kernel version of GetFinalPathByHandle() on a Windows 7 machine?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">~ Todd Snider<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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